build(deps): bump @nuxt/image from 1.11.0 to 2.1.0 in /docs

Bumps [@nuxt/image](https://github.com/nuxt/image) from 1.11.0 to 2.1.0.
- [Release notes](https://github.com/nuxt/image/releases)
- [Changelog](https://github.com/nuxt/image/blob/main/CHANGELOG.md)
- [Commits](nuxt/image@v1.11.0...v2.1.0)

---
updated-dependencies:
- dependency-name: "@nuxt/image"
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]